html,body{
    width:100%;
    height: 100%;
}
.div_banner{
    min-height: 800px;
    max-height: 1080px;
    background-image: url(../image/banner.png);
    background-repeat: no-repeat;
    -moz-background-size:contain;
    -webkit-background-size:contain;
    -o-background-size:contain;
    background-size:contain;
}
.div_app{
    padding-top: 600px;
    text-align: center;
}

.img_icon{
    margin-left: auto;
    margin-right: auto;
    width: 100px;
    height: 100px;
    text-align: center;
    -moz-background-size:cover;
    -webkit-background-size:cover;
    -o-background-size:cover;
    background-size:cover;
}


.market{
    background-image: url(../image/market.jpg);
}
.business{
    background-image: url(../image/business.jpg);
}
.mediatype{
    background-image: url(../image/media.png);
}
.logo{
    background-image: url(../image/logo.jpg);
}
.weixin{
    background-image: url(../image/weixin.jpg);
}
.weibo{
    background-image: url(../image/weibo.jpg);
}


/*
.banner { position: relative; overflow: auto; }
    .banner li { list-style: none; }
        .banner ul li { float: left; }
*/